Carrier for ovens, furnaces, or the like



March 14, 1933. E. T. BENNINGTON CARRIER FOR OVENS, FURNACES, OR THELIKE Filed Jan. 15 1927 AWJ Patented Mar. 14, 1933 UNITEDSTATESHEATENTYOFFICE EARL T. BENNINGTON, OF CLEVELAND HEIGHTS, OHIO,ASSIGNOR TO THE CLEVELAND CRANE & ENGINEERING COMPAN Y, OF \VICKLIFFE,OHIO, A CORPORATION OF OHIO CARRIER FOR OVENS, FURNACES, on THE-LIKE;

Application filed .Tanuary'15, 1111-127. jsaia no.- 161,382.

This invention relates to carriersfor ovens, furnaces or the like andhas for its object to provide a carrier system in which the articlessubjected to heat treatment are supported from overhead carrierstraveling on a track above the top of the furnace or oven chamber bymeans of load supporting members depending from the carriers andextending through a longitudinal slot in the top wall of the chamber andin which means is provided for protecting the carriers from the heat ofthe furnace and for preventing the escape of an excessive amount of heatfrom the oven or furnace. V

The invention herein disclosed is adapted primarily for use inconnection with enameling furnaces, particularly for baking paint or thelike onto the surfaces of articles coated with the same.

The accompanying drawing and the following description set forth indetail certain .means embodying the invention, the disclosed means,however, constituting but one of the various mechanical forms in whichthe principle of the invention may be employed.

Reference should be had to the accompanying drawing forming a part ofthis specification in which:

Fig. 1 is a side elevation of an oven or furnace chamber with a row ofcarriers passing over the same.

Fig. 2 is a transverse section through the oven or furnace chambershowing one of the carriers in end elevation.

Fig. 3 is an end elevation of one of the carriers clear of the oven orfurnace.

Referring to the accompanying drawing, an oven or furnace chamber 1 isprovided with a slot 2 in its top wall extending the full length thereofanddirectly over the slot 2 there is mounted a monorail track 3 uponwhich carriers supporting articles to be passed through the furnace oroven travel. Each carrier has a frame 4 and supporting wheels 5 arrangedin pairs to travel upon the opposite flanges of the monorail track 3.Pivotally suspended from the center of each carrier frame 4 there is adepending load carrying rod 6 which is adapted to extend downwardlythrough the slot 2 from the top of the oven or furnace chamber and whichhas at its lower end a hook? by means of which an' article to be passedthrough the oven or furnace may be supported. A collar 8 is attached toeach of'the rods 6 at a point such that while the carriers are passingover an oven or furnace the collar will be somewhat below the uppersurface of the top wall ofthe' chamber. Slidably' mounted upon each ofthe rods 6 is a cover plate 9 which is of a width greater than the slot2 and of a length substantially equal to the length of the carrier frame4.

. Theends of the furnace or oven chamber will be provided with suitabledoors or openings through which the articles suspended from the carriersmay pass into or out of the furnace. In passing the articles throughthefurnace the carriers are pushed one against another and the cover plates9 rest upon the top of the chamber over the slot 2 and since the coverplates 9 are of substantially the same lengths as the carriers theplates will 'be dragged end to end along the top of the chamber and willform a cover for the slot 2 protecting the carriersfrom the heat of thefurnace or oven and also preventing excessive escape of heat from theinterior of the oven or furnace chamber. When the carriers are travelingupon a portion of the trackway from the furnace or oven the plates 9;are supported upon the collars 8 and as the carriers pass over the frontend of a furnace or oven chamber the plates are raised off of thecollars and slide upon the top of the chamber. To

facilitate the lifting of the plates as the car-V riers come to theportion of the track directly over the front end of a furnace or ovenchamber each plate is bent upwardly at its forward end 10 to engage withan inclined portion 11 at the end of top wall of the furnace chamber sothat the cover plates will readily ride up onto the top of the oven orfurnace chamber. To prevent turning of the plates 9 upon the rods 6 aportion of the rods upon which the plates slide may be made square incross section to fit a square opening in the p ate.

.Having thus described my inventionwhat I claim is: I

1. A carrier for furnaces, ovens or the like,

having supporting wheels adapted to travel on an overhead track, aframe, load supporting members depending from'the frame, a cover plateof substantially the same length as the frame slidably mounted on saidmembers, one end of said plate being upwardly inclined, and means onsaid members intermediate the ends thereof for supporting said plate.

2. In combination with an oven having a slot through the top wallthereof, a track above said slot, carriers on said track havingdepending load supporting members adapted to enter said slot as thecarriers move upon the track toward and over said oven, said carrierscomprising vertically movable cover plates, cooperating surfaces uponthe forward ends of the cover plates and the entrance end of the ovenfor camming said plates onto the top of the oven, whereby the engagementbetween the plates and the top of the oven serves to close the slottherein, and means for limiting the downward movement of the plates uponthe carriers when the latter leave said oven.

3. In combination with an oven having a slot through the top wallthereof, a track above said slot, carriers on said track havingdepending load supporting members adapted V to enter said slot as thecarriers move upon the track toward and over said oven said carriersbeing adapted to abut each other end to end and comprising verticallymovable cover plates one for each carrier, said plates beingsubstantially coextensive with said carriers in a lengthwise direction,cooperating surfaces upon the forward ends of the cover plates and theentrance end of the oven for camming said plates onto the top of theoven, whereby the engagement between the plates and the top of the ovenserves to close the slots therethrough, and means on the carriersadapted to support said plates at a level slightly lower than the levelof the oven top surface.

In testimony whereof, I hereunto afiiz: my

signature.

EARL T. BENNINGTON.

